The programmers of tomorrow are the wizards of the future.

In order for innovation to happen, a bunch of things that aren't happening on closed platforms need to occur. Valve wouldn't exist today without the PC, or Epic, or Zynga, or Google. They all wouldn't have existed without the openness of the platform. There's a strong tempation to close the platform, because they look at what they can accomplish when they limit the competitors' access to the platform, and they say 'That's really exciting.'

I consider Apple to be very closed. Let's say you have a book business, and you are charging 5 to 7 percent gross margins; you can't exist in an Apple world because they want 30 percent, and they don't care that you only have 7 percent to play with.

If you look at the requirements for just one piece, like art, from one generation of games to the next, it will change radically. You need people who are adaptable because the thing that makes you the best in the world in one generation of games is going to be totally useless in the next.

One of the things that's important about family is the narrative history they create for themselves.

The culture at Valve is pretty much crowdsourced. The handbook is a wiki. One of the first things we say to new hires is, 'You have to change something in the handbook.'

The Internet is changing what entertainment and sports is. It's not just a few people authoring an experience for others. It's really growing out of what everybody does.